diff --git a/.travis.yml b/.travis.yml
index 41d3b3a..2b49312 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -8,6 +8,12 @@ script:
   - if [[ "$TOXENV" == "py37" ]]; then black --check cli_helpers tests ; else echo "Skipping black for $TOXENV"; fi
 matrix:
   include:
+    - os: linux
+      python: 2.7
+      env: TOXENV=py27
+    - os: linux
+      python: 3.5
+      env: TOXENV=py35
     - os: linux
       python: 3.6
       env: TOXENV=py36
diff --git a/.travis/install.sh b/.travis/install.sh
index 3d827ef..83fdfc9 100755
--- a/.travis/install.sh
+++ b/.travis/install.sh
@@ -11,6 +11,10 @@ if [[ "$(uname -s)" == 'Darwin' ]]; then
     eval "$(pyenv init -)"
 
     case "${TOXENV}" in
+        py27)
+            curl -O https://bootstrap.pypa.io/get-pip.py
+            python get-pip.py --user
+            ;;
         py36)
             pyenv install 3.6.1
             pyenv global 3.6.1
diff --git a/AUTHORS b/AUTHORS
index 5bcb9cc..d1701a1 100644
--- a/AUTHORS
+++ b/AUTHORS
@@ -23,6 +23,7 @@ This project receives help from these awesome contributors:
 - Michał Górny
 - Waldir Pimenta
 
+
 Thanks
 ------
 
diff --git a/CHANGELOG b/CHANGELOG
index f3d0c71..9d0a4ae 100644
--- a/CHANGELOG
+++ b/CHANGELOG
@@ -20,7 +20,6 @@ Version 2.0.1
 (released on 2020-05-27)
 
 * Fix newline escaping in plain-text formatters (ascii, double, github)
-* Use built-in unittest.mock instead of mock.
 
 Version 2.0.0
 -------------
diff --git a/CONTRIBUTING.rst b/CONTRIBUTING.rst
index a7e9d2a..c69eeba 100644
--- a/CONTRIBUTING.rst
+++ b/CONTRIBUTING.rst
@@ -66,7 +66,7 @@ hasn't broken any existing functionality. To run the tests, just type in::
 
     $ pytest
 
-CLI Helpers supports Python 3.6+. You can test against multiple versions of
+CLI Helpers supports Python 2.7 and 3.4+. You can test against multiple versions of
 Python by running::
 
     $ tox
diff --git a/appveyor.yml b/appveyor.yml
index 68eded1..3c568c8 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -1,5 +1,7 @@
 environment:
   matrix:
+    - PYTHON: "C:\\Python27"
+    - PYTHON: "C:\\Python35"
     - PYTHON: "C:\\Python36"
     - PYTHON: "C:\\Python37"
 
diff --git a/cli_helpers/tabular_output/tabulate_adapter.py b/cli_helpers/tabular_output/tabulate_adapter.py
index 565b5a9..2054d36 100644
--- a/cli_helpers/tabular_output/tabulate_adapter.py
+++ b/cli_helpers/tabular_output/tabulate_adapter.py
@@ -20,23 +20,23 @@
 tabulate.MIN_PADDING = 0
 
 tabulate._table_formats["psql_unicode"] = tabulate.TableFormat(
-    lineabove=tabulate.Line("┌", "─", "┬", "┐"),
-    linebelowheader=tabulate.Line("├", "─", "┼", "┤"),
+    lineabove=tabulate.Line(u"┌", u"─", u"┬", u"┐"),
+    linebelowheader=tabulate.Line(u"├", u"─", u"┼", u"┤"),
     linebetweenrows=None,
-    linebelow=tabulate.Line("└", "─", "┴", "┘"),
-    headerrow=tabulate.DataRow("│", "│", "│"),
-    datarow=tabulate.DataRow("│", "│", "│"),
+    linebelow=tabulate.Line(u"└", u"─", u"┴", u"┘"),
+    headerrow=tabulate.DataRow(u"│", u"│", u"│"),
+    datarow=tabulate.DataRow(u"│", u"│", u"│"),
     padding=1,
     with_header_hide=None,
 )
 
 tabulate._table_formats["double"] = tabulate.TableFormat(
-    lineabove=tabulate.Line("╔", "═", "╦", "╗"),
-    linebelowheader=tabulate.Line("╠", "═", "╬", "╣"),
+    lineabove=tabulate.Line(u"╔", u"═", u"╦", u"╗"),
+    linebelowheader=tabulate.Line(u"╠", u"═", u"╬", u"╣"),
     linebetweenrows=None,
-    linebelow=tabulate.Line("╚", "═", "╩", "╝"),
-    headerrow=tabulate.DataRow("║", "║", "║"),
-    datarow=tabulate.DataRow("║", "║", "║"),
+    linebelow=tabulate.Line(u"╚", u"═", u"╩", u"╝"),
+    headerrow=tabulate.DataRow(u"║", u"║", u"║"),
+    datarow=tabulate.DataRow(u"║", u"║", u"║"),
     padding=1,
     with_header_hide=None,
 )
diff --git a/cli_helpers/utils.py b/cli_helpers/utils.py
index cd91556..ac0cfbe 100644
--- a/cli_helpers/utils.py
+++ b/cli_helpers/utils.py
@@ -3,15 +3,13 @@
 
 import binascii
 import re
-from functools import lru_cache
-from typing import Dict
 
-from typing import TYPE_CHECKING
+from cli_helpers.compat import binary_type, text_type, Terminal256Formatter, StringIO, PY2
 
-if TYPE_CHECKING:
-    from pygments.style import StyleMeta
-
-from cli_helpers.compat import binary_type, text_type, Terminal256Formatter, StringIO
+if PY2:
+    from repoze.lru import lru_cache
+else:
+    from functools import lru_cache
 
 
 def bytes_to_string(b):
@@ -82,7 +80,7 @@ def replace(s, replace):
 
 
 @lru_cache()
-def _get_formatter(style) -> Terminal256Formatter:
+def _get_formatter(style):
     return Terminal256Formatter(style=style)
 
 
@@ -94,7 +92,7 @@ def style_field(token, field, style):
     return s.getvalue()
 
 
-def filter_style_table(style: "StyleMeta", *relevant_styles: str) -> Dict:
+def filter_style_table(style, *relevant_styles):
     """
     get a dictionary of styles for given tokens. Typical usage:
 
diff --git a/requirements-dev.txt b/requirements-dev.txt
index 7846a4d..aff8e25 100644
--- a/requirements-dev.txt
+++ b/requirements-dev.txt
@@ -2,6 +2,8 @@ autopep8==1.3.3
 codecov==2.0.9
 coverage==4.3.4
 black>=20.8b1
+mock==2.0.0
+pep8radius
 Pygments>=2.4.0
 pytest==3.0.7
 pytest-cov==2.4.0
diff --git a/setup.py b/setup.py
index 6c1dd38..2ccd07d 100755
--- a/setup.py
+++ b/setup.py
@@ -24,6 +24,14 @@ def open_file(filename):
 
 readme = open_file("README.rst")
 
+if sys.version_info[0] == 2:
+    py2_reqs = [
+        'backports.csv >= 1.0.0',
+        'repoze.lru',
+    ]
+else:
+    py2_reqs = []
+
 setup(
     name="cli_helpers",
     author="dbcli",
@@ -38,20 +46,22 @@ def open_file(filename):
     install_requires=[
         "configobj >= 5.0.5",
         "tabulate[widechars] >= 0.8.2",
-    ],
+    ] + py2_reqs,
     extras_require={
         "styles": ["Pygments >= 1.6"],
     },
     classifiers=[
-        "Intended Audience :: Developers",
-        "License :: OSI Approved :: BSD License",
-        "Operating System :: Unix",
-        "Programming Language :: Python",
-        "Programming Language :: Python :: 3",
-        "Programming Language :: Python :: 3.6",
-        "Programming Language :: Python :: 3.7",
-        "Topic :: Software Development",
-        "Topic :: Software Development :: Libraries :: Python Modules",
-        "Topic :: Terminals :: Terminal Emulators/X Terminals",
-    ],
+        'Intended Audience :: Developers',
+        'License :: OSI Approved :: BSD License',
+        'Operating System :: Unix',
+        'Programming Language :: Python',
+        'Programming Language :: Python :: 2.7',
+        'Programming Language :: Python :: 3',
+        'Programming Language :: Python :: 3.5',
+        'Programming Language :: Python :: 3.6',
+        'Programming Language :: Python :: 3.7',
+        'Topic :: Software Development',
+        'Topic :: Software Development :: Libraries :: Python Modules',
+        'Topic :: Terminals :: Terminal Emulators/X Terminals',
+    ]
 )
diff --git a/tests/test_config.py b/tests/test_config.py
index 27e76c7..e460bc4 100644
--- a/tests/test_config.py
+++ b/tests/test_config.py
@@ -4,7 +4,7 @@
 from __future__ import unicode_literals
 import os
 
-from unittest.mock import MagicMock
+from mock import MagicMock
 import pytest
 
 from cli_helpers.compat import MAC, text_type, WIN
diff --git a/tox.ini b/tox.ini
index d0d97f8..4c29d57 100644
--- a/tox.ini
+++ b/tox.ini
@@ -1,5 +1,5 @@
 [tox]
-envlist = cov-init, py36, py37, noextras, docs, packaging, cov-report
+envlist = cov-init, py27, py35, py36, py37, noextras, docs, packaging, cov-report
 
 [testenv]
 passenv = CI TRAVIS TRAVIS_* CODECOV